Thanks goldenboy,

I'm mostly curious about front derailleurs, when they list an 18T gear capacity, in the case of the BL, should I actually be able to get that. Having trouble with the 17T gap between my 28 and 45, and I would like to move to a 32 / 50 chainring setup. I ordered an Alpine Gear (AG) Tech Suntour derailleur that lists a 26T gear capacity, so I'm hoping that allows me to cover it.

Is it generally best to stay away from front derailleur gear capacity limits?